Communications and emergency services 6 reports.

Communications and emergency services 6 reports.

التفاصيل البيبلوغرافية
مؤلفون مشاركون: National Research Council (U.S.). Highway Research Board. Committee on Communications, National Research Council (U.S.). Highway Research Board. Committee on Motorist Services
التنسيق: كتاب
اللغة:English
منشور في: Washington, D.C. Highway Research Board, National Research Council c1971.
سلاسل:Highway research record no. 358.
الموضوعات:
Transportation > Congresses.
Emergency communication systems > Congresses.